2024年2月28日 · In the TsAGI AC-2 anechoic chamber, compressed air stored in gas tanks is used to create the flow. To improve the quality of the results, the measurements were tested using the same conical nozzle, which was successively used in both anechoic chambers. The nozzle had the following parameters: nozzle edge diameter 50 mm; inlet diameter 64 mm ...

在俄罗斯，可以对小型模型（特别是在 tsagi 的 ac-2 电波暗室）或使用噪声源定位方法（波束形成）的全尺寸飞行试验进行起落架噪声的实验研究). 因此，将小型飞机起落架模型的噪声测量结果与使用波束形成方法测量起落架噪声的飞行试验结果进行比较是有意义 ...

2023年3月23日 · The TsAGI AC-2 anechoic chamber is an anechoic facility with an open circuit for studying jet noise with and without coflow.The external contour, which serves for producing the coflow (a round nozzle with a diameter of 400 mm, the flow velocity up to 80 m/s), is used for studying the aerodynamic noise for small models, in particular, landing-gear models.

2023年3月23日 · The acoustic tests of the rectangular nozzle were carried out in the TsAGI AC-2 anechoic chamber (), which enables measurements in anechoic conditions for frequencies above 160 Hz.The jet noise was measured using ten microphones 1/2" Bruel & Kjaer 4189 (the frequency range from 6.3 to 20 kHz) located along an arc with a radius of 2 m from the nozzle exit in the range of polar angles θ from 20 ...

对于这两种基本构型对应的等效喷气机，远场噪声的确定采用tsagi半经验法计算喷气机噪声。 与矩形喷嘴的实验数据的比较表明，与等效的圆形喷嘴相比，由于使用矩形喷嘴而获得降噪的观察角度和频率范围，以及矩形喷嘴噪音更大的范围。

2020年2月27日 · 而被称为 航罗斯航空之父的茹科夫斯基，就是本文主角“中央空气流体动力研究院”（tsagi ... 此外，tsagi还配备有全机疲劳试验室一座、全机静力试验室一座以及ac-2、ac-11、rk-1500航空声学实验室三个，浮动弹射器一座。

Download scientific diagram | Jet-plate system in TsAGI anechoic chamber AC-2. from publication: Plasma-based active closed-loop control of instability waves in unexcited turbulent jet. Part 2.

Download scientific diagram | Microphone array in TsAGI anechoic chamber AC-2. from publication: Adaptation of the Azimuthal Decomposition Technique to Jet Noise Measurements in Full-Scale Tests ...

2023年2月10日 · Indeed, after Strouhal scaling for the scale l = 10.9 the data from AC-2 TsAGI will be located in the frequency range below 2 kHz, so the higher frequency part of the spectra from FL-17 CARDC cannot be directly compared with AC-2 TsAGI results. Therefore, in the following analysis the highest frequency of FL-17 CARDC data will be limited to 5 kHz.

Download scientific diagram | SSD-based plasma actuator in anechoic chamber AC-2 of TsAGI. from publication: Instability wave control in turbulent jet by plasma actuators | Instability waves in ...